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本文根据透射电子显微镜的观察结果,研究了硅锰稀土铸钢在不同热处理状态条件下所出现的马氏体形态及亚结构.着重分析了影响形成孪晶马氏体和板条马氏体的因素,以及1050℃高温奥氏体化淬火样品回火过程中马氏体组织转变及其对性能的影响.
Based on the observation results of transmission electron microscope, the morphology and substructure of martensite in Si-Mn rare-earth cast steel under different heat treatment conditions were studied. The effects of formation of twin martensite and lath martensite Factor and the martensitic transformation during the tempering process of 1050 ℃ high temperature austenitizing quenching samples and their effects on the properties.